Optimization design method of fibre enhanced composite material marine propeller blade

A technology for marine propellers and composite materials, which is applied in the directions of rotating propellers, computing, and rotary propellers, and can solve the problems of imperfect design methods of fiber-reinforced composite propellers.

Inactive Publication Date: 2010-05-12
HARBIN INST OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of imperfect design method of fiber reinforced composite material propeller, and propose an optimal design method of fiber reinforced composite material marine propeller blade

Method used

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  • Optimization design method of fibre enhanced composite material marine propeller blade
  • Optimization design method of fibre enhanced composite material marine propeller blade
  • Optimization design method of fibre enhanced composite material marine propeller blade

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Experimental program
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specific Embodiment approach 1

[0027] Specific embodiment one: the optimal design method of this embodiment is realized by the following steps:

[0028] Step 1: Composite unidirectional carbon fiber and epoxy resin to make a standard specimen of carbon fiber composite material, and complete the test to obtain the elastic constant and Poisson's ratio performance parameters, where: the elastic modulus in the X, Y, and Z directions are equal to Greater than 8e9Pa, Poisson's ratio greater than 0.2, shear modulus greater than 3e9Pa;

[0029] Step 2: According to the high-speed metal propeller blade type value data, use the three-dimensional solid configuration software UG to construct the geometric model of the fiber-reinforced composite marine propeller;

[0030] Step 3: Import the geometric model of the fiber-reinforced composite marine propeller into the finite element software ANSYS, select the element type SOLID46 to mesh it, and combine the elastic constant and Poisson's ratio performance parameters obtain...

specific Embodiment approach 2

[0078] Embodiment 2: In step 2 of this embodiment, the high-speed metal propeller is a large-slope or ducted propeller, and the rotational speed is n>1000rpm. Other components and connections are the same as those in the first embodiment.

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Abstract

The invention discloses an optimization design method of fibre enhanced composite material marine propeller blades, which relates to an optimization design method of propeller blades and aims at solving the problem of imperfect design method of the fibre enhanced composite material marine propeller blades. On the basis of offsets data of the original high-speed metal propeller blades, the method is calculated by using a fluid-solid coupling method combining with the implementation of predeformation strategy, a blade structure is composed by mixed fibre composite materials, the surface of a blade adopts fibre glass enhanced composite material, the interior of the blade adopts the mixture of carbon fiber and Kelvar fiber enhanced composite material, and the specific mixed paving mode and the mixing ratio are determined according to the hydro elastic design result of a fibre enhanced composite material marine propeller. The optimization design method is used for designing the propeller blades.

Description

technical field [0001] The invention relates to an optimal design method of propeller blades. Background technique [0002] In recent years, with the increasing development of various new types of ships and high-speed ships, the requirements for propeller vibration, noise and propulsion performance have also increased significantly. Although many new metal propellers (such as large skew propellers, ducted propellers, and pump jet ducted propellers) have appeared one after another, they are often difficult to achieve a good balance in terms of propulsion performance, noise and quality. [0003] At present, the widespread use of fiber-reinforced composite materials in the marine field provides a new opportunity for propeller designers. However, this aspect is still in its infancy in China, and there is a lack of systematic and complete design methods for fiber reinforced composite marine propellers. Contents of the invention [0004] The purpose of the present invention is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50B63H1/26
CPCY02T90/00
Inventor 赫晓东洪毅王荣国
Owner HARBIN INST OF TECH
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